Effects of non-spherical drops on a phase Doppler spray analyzerA phase/Doppler spray analyzer (P/DSA) and a laser imaging system was used to study the response of a P/DSA to nonspherical particles. Methanol particles with an aspect ratio ranging from 0.7 to 1.4 were used in this investigation. Results indicated that the P/DSA was quite sensitive to particle shape. A Berglund-Liu generator was used to produce particles of 98 microns (volumetric diameter). The P/DSA instrument measured particle sizes ranging from 142 microns for a particle of aspect ratio 0.7, to 84 microns for an aspect ratio of 1.4. Particle diameters based on averaged x and y diameters for the laser imaging system ranged from 95 microns to 92 microns over the same range of aspect ratios.
Document ID
19870023774
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Alexander, D. R. (Nebraska Univ. Lincoln, NE, United States)
Wiles, K. J. (Nebraska Univ. Lincoln, NE, United States)
Schaub, S. A. (Nebraska Univ. Lincoln, NE, United States)
Seeman, M. P. (Nebraska, University Lincoln, United States)